Shade Tree 20' x 30' Heavy Duty Event, Party, Wedding Tent, Canopy, Carport, w/Sidewalls Shade Tree Tents are Trademarked and sold EXCLUSIVELY by Rolling Hills Trading, Inc. - CAUTION: POWER $TORE is NOT Authorized to sell Shade Tree Tents! They are selling a FAKE or a KNOCK OFF! **IMPROVED** High quality galvanized steel framework with spring loaded locking balls Removable sidewalls with beautiful windows with lattice; and end walls with zippers for doorways High strength galvanized metal joint fittings Heavy Duty waterproof 180 gram polyethylene woven fabric canopy and sidewalls, Protection - Blocks 90% of sun's rays